Home / 708,396.18-977,580.48-386,106.30

Finding the Fourth Proportional to 708,396.18, 977,580.48 and 386,106.30

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Solution

The fourth proportional to 708,396.18, 977,580.48 and 386,106.30 is: 532,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,396.18 : 977,580.48 = 386,106.30 : x
  2. Step 2: Convert to fraction form
    708,396.18/977,580.48 = 386,106.30/x
  3. Step 3: Cross multiply
    708,396.18x = 977,580.48 × 386,106.30
  4. Step 4: Simplify right side
    708,396.18x = 377,449,982,085.02
  5. Step 5: Solve for x
    x = 377,449,982,085.02/708,396.18
  6. Step 6: Final answer
    x = 532,823.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.